<template>
	<view>
    <!-- <my-search :bgcolor="'pink'" :radius="3"></my-search> -->
    <my-search @click="gotoSearch"></my-search>
		<view class="scroll-view-container">
		  <scroll-view scroll-y="true" :style="{ height: wh + 'px' }" class="left-scroll-view"> 
      <block v-for="(item, i) in cateList" :key="i">
        <view :class="['left-scroll-view-item', i === active ? 'active' : '']" @click="activeChange(i)">{{item.cat_name}}</view>
      </block>
      </scroll-view>
      
      <scroll-view scroll-y="true" :style="{ height: wh + 'px' }" :scroll-top="scrollTop">
        <view class="cate-lv2" v-for="(item2, i2) in cateLevel2" :key="i2">
          <view class="cate-lv2-title">/ {{item2.cat_name}} /</view>
          <view class="cate-lv3-list">
            <view class="cate-lv3-item" v-for="(item3, i3) in item2.children" :key="i3" @click="gotoGoodsList(item3)">
              <image :src="item3.cat_icon.replace('ugo-dev','hmugo-web')" mode="widthFix"/>
              <text>{{item3.cat_name}}</text>
            </view>
          </view>
        </view>
      </scroll-view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				wh: 0,
        cateList: [],
        active: 0,
        cateLevel2: [],
        scrollTop: 0
			};
		},
    onLoad() {
      const sysInfo = uni.getSystemInfoSync()
      this.wh = sysInfo.windowHeight - 50
    
      this.getCateList()
    },
    methods: {
      async getCateList () {
        const { data: res } = await uni.$http.get('/api/public/v1/categories')
        if (res.meta.status !== 200) return uni.$showMsg()
        this.cateList = res.message
        this.cateLevel2 = res.message[0].children
      },
      activeChange (i) {
        this.active = i
        this.cateLevel2 = this.cateList[i].children
        this.scrollTop = this.scrollTop === 0 ? 1 : 0
      },
      gotoGoodsList (item) {
        uni.navigateTo({
          url: '/subpkg/goods_list/goods_list?cid=' + item.cat_id
        })
      },
      gotoSearch () {
        uni.navigateTo({
          url: '/subpkg/search/search'
        })
      }
    }
	}
</script>

<style lang="scss">
  .scroll-view-container {
    display: flex;
  }
  .left-scroll-view {
    width: 120px;
  }
  .left-scroll-view-item {
    
    background-color: #F7F7F7;
    line-height: 60px;
    text-align: center;
    font-size: 12px;
    
    &.active {
      background-color: #fff;
      position: relative;
      
      &::before {
        content: '';
        display: block;
        width: 3px;
        height: 30px;
        background-color: #C00000;
        position: absolute;
        top: 50%;
        left: 0;
        transform: translateY(-50%);
      }
    }
  }
  .cate-lv3-list {
    display: flex;
    flex-wrap: wrap;
    
    .cate-lv3-item {
      width: 33.33%;
      display: flex;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      margin-bottom: 10px;
      
      image {
        width: 60px;
        height: 60px;
      }
      text {
        font-size: 12px;
      }
    }
  }
</style>
